<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <form action="/upload/upload" method="post" enctype="multipart/form-data">
        类型：<select name="type">
                <option value="image">图片</option>
                <option value="doc">文档</option>
            </select>
        文件:<input type="file" name="file"><button>上传</button>
    </form>
</body>
</html>